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UBA2037 Dataheets PDF



Part Number UBA2037
Manufacturers NXP
Logo NXP
Description Full bridge control IC
Datasheet UBA2037 DatasheetUBA2037 Datasheet (PDF)

UBA2037 Full bridge control IC for HID general lighting Rev. 01 — 30 October 2008 Product data sheet 1. General description The UBA2037 is a high voltage monolithic Integrated Circuit (IC) manufactured in a High Voltage Silicon On Insulator (HVSOI) process. This circuit is designed for driving MOSFETs in a full bridge configuration. In addition, it features a disable function, an internal adjustable oscillator and an external clock input function with a high-voltage level shifter for driving .

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UBA2037 Full bridge control IC for HID general lighting Rev. 01 — 30 October 2008 Product data sheet 1. General description The UBA2037 is a high voltage monolithic Integrated Circuit (IC) manufactured in a High Voltage Silicon On Insulator (HVSOI) process. This circuit is designed for driving MOSFETs in a full bridge configuration. In addition, it features a disable function, an internal adjustable oscillator and an external clock input function with a high-voltage level shifter for driving the bridge. To guarantee an accurate 50 % duty cycle, the oscillator signal can be passed through a divider before being fed to the output drivers. The UBA2037 is especially suitable for High Intensity Discharge (HID) lamp drivers for projectors and general lighting applications. 2. Features I Full bridge driver circuit I Integrated bootstrap diodes I 464 V integrated high voltage level shift function to drive HID lamps below ground level I 550 V series regulator input to make the internal supply I 550 V maximum bridge voltage I Accurate bridge disable function I Input for start-up delay I Adjustable oscillator frequency I Selectable frequency divider I Predefined bridge position during start-up I Adaptive non-overlap 3. Applications I The UBA2037 can drive (via the power MOSFETs) any kind of load in a full bridge configuration. I The circuit is especially designed as a commutator controller for HID lamps in projectors and general lighting applications. NXP Semiconductors UBA2037 Full bridge control IC for HID general lighting 4. Ordering information Table 1. Ordering information Type number Package Name Description UBA2037T SO24 plastic small outline package; 24 leads; body width 7.5 mm UBA2037TS SSOP28 plastic shrink small outline package; 28 leads; body width 5.3 mm 5. Block diagram Version SOT137-1 SOT341-1 VSS(CLK) CLK 12 6 HV 14 SGND STABILIZER VDD 9 RC 13 OSCILLATOR 10 SU 12 BD 1.29 V bridge disable Fig 1. Block diagram VDD(CLK) 3 LOGIC SIGNAL GENERATOR ÷2 HIGH VOLTAGE LEVEL SHIFTER UBA2037TS LOGIC LOW VOLTAGE LEVEL SHIFTER 11 DD HIGHER LEFT DRIVER HIGHER RIGHT DRIVER LOWER RIGHT DRIVER LOWER LEFT DRIVER 16 FSL 15 GHL 17 SHL 27 FSR 28 GHR 26 SHR 23 GLR 21 PGND 20 GLL 4, 5, 7, 8, 18, 19, 22, 24, 25 n.c. 014aaa635 UBA2037_1 Product data sheet Rev. 01 — 30 October 2008 © NXP B.V. 2008. All rights reserved. 2 of 14 NXP Semiconductors 6. Pinning information 6.1 Pinning UBA2037 Full bridge control IC for HID general lighting VSS(CLK) 1 CLK 2 VDD(CLK) 3 n.c. 4 HV 5 n.c. 6 VDD 7 SU 8 DD 9 BD 10 RC 11 SGND 12 UBA2037T 24 GHR 23 FSR 22 SHR 21 n.c. 20 GLR 19 n.c. 18 PGND 17 GLL 16 n.c. 15 SHL 14 FSL 13 GHL 014aaa636 Fig 2. SO24 package VSS(CLK) 1 CLK 2 VDD(CLK) 3 n.c. 4 n.c. 5 HV 6 n.c. 7 n.c. 8 VDD 9 SU 10 DD 11 BD 12 RC 13 SGND 14 UBA2037TS 28 GHR 27 FSR 26 SHR 25 n.c. 24 n.c. 23 GLR 22 n.c. 21 PGND 20 GLL 19 n.c. 18 n.c. 17 SHL 16 FSL 15 GHL 014aaa637 Fig 3. SSOP28 package 6.2 Pin description Table 2. Symbol VSS(CLK) CLK VDD(CLK) n.c. n.c. HV n.c. n.c. VDD SU DD BD RC SGND GHL FSL SHL n.c. Pin description Pin Pin Description UBA2037T UBA2037TS 11 negative supply voltage for logic oscillator input 22 oscillator input 33 positive supply voltage for logic oscillator input 44 not connected 5 not connected 56 high voltage supply input for internal series regulator 67 not connected 8 not connected 79 internal low voltage supply 8 10 input for start-up delay 9 11 input for divider disable 10 12 input for bridge disable 11 13 RC input for internal oscillator 12 14 signal ground 13 15 gate driver output for upper left MOSFET 14 16 floating supply left 15 17 source upper left MOSFET 16 18 not connected UBA2037_1 Product data sheet Rev. 01 — 30 October 2008 © NXP B.V. 2008. All rights reserved. 3 of 14 NXP Semiconductors UBA2037 Full bridge control IC for HID general lighting Table 2. Symbol n.c. GLL PGND n.c. GLR n.c. n.c. SHR FSR GHR Pin description …continued Pin Pin Description UBA2037T UBA2037TS 19 not connected 17 20 gate driver output for lower left MOSFET 18 21 power ground 19 22 not connected 20 23 gate driver output for lower right MOSFET 21 24 not connected 25 not connected 22 26 source upper right MOSFET 23 27 floating supply right 24 28 gate driver upper right MOSFET 7. Functional description 7.1 Supply voltage The UBA2037 is powered by a supply voltage applied to pin HV, e.g. the supply voltage of the full bridge. The IC generates its own low supply voltage for its internal circuitry. Therefore an additional low voltage supply is not required. A capacitor has to be connected to pin VDD to obtain a ripple-free internal supply voltage. The circuit can also be powered by a low voltage supply directly applied to pin VDD. In this case pin HV should be connected to pin VDD or pin SGND. The maximum current that the internal series regulator can deliver, is temperature dependent. This is shown in Figure 4. 7.2 Star.


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